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2009-11-24T05:55:53Z

Created page with '== Stats 13.1 - Laboratory Activity 3== You can access the applet for any of the [http://www.socr.ucla.edu/htmls/SOCR_Distributions.html SO…'

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== [[SOCR_Courses_2009_2010_Stat13_1 | Stats 13.1]] - Laboratory Activity 3==

You can access the applet for any of the [http://www.socr.ucla.edu/htmls/SOCR_Distributions.html SOCR distributions] at http://www.socr.ucla.edu/htmls/SOCR_Distributions.html. Use SOCR to graph the following distributions and answer the questions below. Also, comment on the shape of each one of these distributions.

===[http://socr.ucla.edu/htmls/dist/Binomial_Distribution.html Binomial Distribution] Activity ===

==== Problem 1 ====
* X~Binom(10,.5)
* Find: P(x = 3),E(X), sd(X) and verify them with the formulas discussed in class.

==== Problem 2 ====
* X~Binom(10,.1)
* Find and verify:
* P(1 <= x <= 3)

==== Problem 3 ====
* X~Binom(10,.9)
* Find and verify:
* P(5 < x < 8)
* P(x < 8)
* P(x <= 7)
* P(x >= 9)

==== Problem 4 ====
* X~Binom(30,.1)
* Find and verify: P(x > 2)

===Distribution Comparison===

* Graph and comment on the shape of the [http://socr.ucla.edu/htmls/dist/Binomial_Distribution.html binomial distribution] with n = 20, p = 0.1 and then with n = 20,p = 0.9 (take a snapshot of each).
* Now, keep n = 20 but change p = 0.45. How about when n = 80,p = 0.1? Take another snapshot.
* What changes do you observe in the distribution as the parameters change? Watch both the change in shape as well as the changing number on the x and y axes.

{|border="1" cellpadding="20"
|Smaller n
|Larger n
|Smaller p
|Larger p
|-
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* SOCR Home page: http://www.socr.ucla.edu

{{translate|pageName=http://wiki.stat.ucla.edu/socr/index.php?title=SOCR_Courses_2009_2010_Stat13_1_Lab3}}

SOCR Courses 2009 2010 Stat13 1 Lab3 - Revision history

IvoDinov: Created page with '== Stats 13.1 - Laboratory Activity 3== You can access the applet for any of the [http://www.socr.ucla.edu/htmls/SOCR_Distributions.html SO…'